Mohd. Nain Hj. Awang, <br/><br/>
Number system and functions/ 
Mohd Nain Hj. Awang, Umar Baba. 
 - Kuala Lumpur:  Utusan Publications & Distributors,  2011 
 - vii, 165p.;  24cm. 
<br/><br/>Bibliography : p. 164 
<br/><br/><label>ISBN: </label>9789676125095 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory
<br/><br/><label>Dewey Class. No.: </label>512.7 MNA 2011